html,
body {
  width: 100%;
  height: 100%;
}

body,
ol,
ul,
h1,
h2,
h3,
h4,
h5,
h6,
p,
th,
td,
dl,
dd,
form,
fieldset,
legend,
input,
textarea,
select {
  margin: 0;
  padding: 0
}

body {
  font: 12px"Microsoft YaHei", "Arial Narrow", HELVETICA;
  -webkit-text-size-adjust: 100%;
  font-size: 12px;
}

a {
  color: #2d374b;
  text-decoration: none
}

a:hover {
  color: #2d374b;
}

em {
  font-style: normal
}

li {
  list-style: none
}

img {
  border: 0;
  vertical-align: middle
}

table {
  border-collapse: collapse;
  border-spacing: 0
}

p {
  word-wrap: break-word
}

iframe {
  border: 0;
}

div {
  box-sizing: border-box;
}

button,
button:focus,
button:active,
button:hover {
  outline: none;
}

textarea {
  font-family: inherit
}

.fl {
  float: left;
}

.fr {
  float: right;
}

.clear {
  clear: both;
}

*::-webkit-scrollbar {
  width: 6px;
  height: 6px;
  background-color: transparent;
}

/*定义滚动条高宽及背景 高宽分别对应横竖滚动条的尺寸*/
*::-webkit-scrollbar-track {
  background-color: transparent;
}

/*定义滚动条轨道 内阴影+圆角*/
*::-webkit-scrollbar-thumb {
  background-color: rgba(202, 197, 197, 0.4);
  border-radius: 6px;
}
*::-webkit-scrollbar-thumb:hover {
   background: rgba(202, 197, 197, 0.8);
 }
/*定义滑块 内阴影+圆角*/
.scrollbarHide::-webkit-scrollbar {
  display: none;
}

.scrollbarShow::-webkit-scrollbar {
  display: block;
}